Thumb-2: Implementation of the unified start-up and exceptions code
[linux-3.10.git] / arch / arm / kernel / head-nommu.S
index cc87e17..b16393d 100644 (file)
@@ -34,7 +34,7 @@
  */
        .section ".text.head", "ax"
 ENTRY(stext)
-       msr     cpsr_c, #PSR_F_BIT | PSR_I_BIT | SVC_MODE @ ensure svc mode
+       setmode PSR_F_BIT | PSR_I_BIT | SVC_MODE, r9 @ ensure svc mode
                                                @ and irqs disabled
 #ifndef CONFIG_CPU_CP15
        ldr     r9, =CONFIG_PROCESSOR_ID
@@ -50,8 +50,10 @@ ENTRY(stext)
 
        ldr     r13, __switch_data              @ address to jump to after
                                                @ the initialization is done
-       adr     lr, __after_proc_init           @ return (PIC) address
-       add     pc, r10, #PROCINFO_INITFUNC
+       adr     lr, BSYM(__after_proc_init)     @ return (PIC) address
+ ARM(  add     pc, r10, #PROCINFO_INITFUNC     )
+ THUMB(        add     r12, r10, #PROCINFO_INITFUNC    )
+ THUMB(        mov     pc, r12                         )
 ENDPROC(stext)
 
 /*
@@ -82,7 +84,8 @@ __after_proc_init:
        mcr     p15, 0, r0, c1, c0, 0           @ write control reg
 #endif /* CONFIG_CPU_CP15 */
 
-       mov     pc, r13                         @ clear the BSS and jump
+       mov     r3, r13
+       mov     pc, r3                          @ clear the BSS and jump
                                                @ to start_kernel
 ENDPROC(__after_proc_init)
        .ltorg